diff --git a/Gemfile.lock b/Gemfile.lock
index 7160e36bf..1c170441e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,7 +36,8 @@ GEM
     activesupport (3.2.21)
       i18n (~> 0.6, >= 0.6.4)
       multi_json (~> 1.0)
-    addressable (2.3.6)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (3.0.3)
     bson (1.11.1)
     bson_ext (1.11.1)
@@ -104,6 +105,7 @@ GEM
       cocaine (~> 0.5.3)
       mime-types
     polyglot (0.3.5)
+    public_suffix (5.0.0)
     rack (1.4.5)
     rack-cache (1.2)
       rack (>= 0.4)